178 lines
8.3 KiB
Python
178 lines
8.3 KiB
Python
# matrix-puppeteer-line - A very hacky Matrix-LINE bridge based on running LINE's Chrome extension in Puppeteer
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# Copyright (C) 2020-2021 Tulir Asokan, Andrew Ferrazzutti
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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from typing import TYPE_CHECKING
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from mautrix.bridge import BaseMatrixHandler
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from mautrix.types import (Event, EventType, MessageEvent, StateEvent, EncryptedEvent,
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ReceiptEvent, SingleReceiptEventContent, TextMessageEventContent,
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EventID, RoomID, UserID)
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from mautrix.errors import MatrixError
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from . import portal as po, puppet as pu, user as u
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if TYPE_CHECKING:
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from .__main__ import MessagesBridge
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class MatrixHandler(BaseMatrixHandler):
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def __init__(self, bridge: 'MessagesBridge') -> None:
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prefix, suffix = bridge.config["bridge.username_template"].format(userid=":").split(":")
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homeserver = bridge.config["homeserver.domain"]
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self.user_id_prefix = f"@{prefix}"
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self.user_id_suffix = f"{suffix}:{homeserver}"
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super().__init__(bridge=bridge)
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def filter_matrix_event(self, evt: Event) -> bool:
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if isinstance(evt, ReceiptEvent):
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return False
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if not isinstance(evt, (MessageEvent, StateEvent, EncryptedEvent)):
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return True
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return (evt.sender == self.az.bot_mxid
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or pu.Puppet.get_id_from_mxid(evt.sender) is not None)
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async def send_welcome_message(self, room_id: RoomID, inviter: 'u.User') -> None:
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await super().send_welcome_message(room_id, inviter)
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if not inviter.notice_room:
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inviter.notice_room = room_id
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await inviter.update()
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await self.az.intent.send_notice(room_id, "This room has been marked as your "
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"LINE bridge notice room.")
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async def handle_puppet_invite(self, room_id: RoomID, puppet: 'pu.Puppet',
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invited_by: 'u.User', _: EventID) -> None:
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intent = puppet.intent
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self.log.debug(f"{invited_by.mxid} invited puppet for {puppet.mid} to {room_id}")
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if not await invited_by.is_logged_in():
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await intent.error_and_leave(room_id, text="Please log in before inviting "
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"LINE puppets to private chats.")
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return
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portal = await po.Portal.get_by_mxid(room_id)
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if portal:
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if portal.is_direct:
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await intent.error_and_leave(room_id, text="You can not invite additional users "
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"to private chats.")
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else:
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# TODO Send invite in LINE
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await intent.error_and_leave(room_id, text="Inviting additional users to an existing "
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"group chat is not yet supported.")
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return
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await intent.join_room(room_id)
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try:
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members = await intent.get_room_members(room_id)
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except MatrixError:
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self.log.exception(f"Failed to get member list after joining {room_id}")
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await intent.leave_room(room_id)
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return
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if len(members) > 2:
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# TODO Add LINE group/room creating. Must also distinguish between the two!
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await intent.send_notice(room_id, "You can not invite LINE puppets to "
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"multi-user rooms.")
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await intent.leave_room(room_id)
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return
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portal = await po.Portal.get_by_chat_id(puppet.mid, create=True)
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if portal.mxid:
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try:
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await intent.invite_user(portal.mxid, invited_by.mxid, check_cache=False)
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await intent.send_notice(room_id,
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text=("You already have a private chat with me "
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f"in room {portal.mxid}"),
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html=("You already have a private chat with me: "
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f"<a href='https://matrix.to/#/{portal.mxid}'>"
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"Link to room"
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"</a>"))
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await intent.leave_room(room_id)
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return
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except MatrixError:
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pass
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portal.mxid = room_id
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e2be_ok = await portal.check_dm_encryption()
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# TODO Consider setting other power levels that get set on portal creation,
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# but they're of little use when the inviting user has an equal PL...
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await portal.save()
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if e2be_ok is True:
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evt_type, content = await self.e2ee.encrypt(
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room_id, EventType.ROOM_MESSAGE,
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TextMessageEventContent(msgtype=MessageType.NOTICE,
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body="Portal to private chat created and end-to-bridge"
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" encryption enabled."))
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await intent.send_message_event(room_id, evt_type, content)
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else:
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message = "Portal to private chat created."
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if e2be_ok is False:
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message += "\n\nWarning: Failed to enable end-to-bridge encryption"
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await intent.send_notice(room_id, message)
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# TODO Put pause/resume in portal methods, with a lock or something
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# TODO Consider not backfilling on invite.
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# To do so, must set the last-seen message ID appropriately
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await invited_by.client.pause()
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try:
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chat_info = await invited_by.client.get_chat(puppet.mid)
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await portal.update_matrix_room(invited_by, chat_info)
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finally:
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await invited_by.client.resume()
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async def handle_join(self, room_id: RoomID, user_id: UserID, _: EventID) -> None:
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user = await u.User.get_by_mxid(user_id)
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portal = await po.Portal.get_by_mxid(room_id)
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if not portal:
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return
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if not user.is_whitelisted:
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await portal.main_intent.kick_user(room_id, user.mxid,
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"You are not whitelisted on this LINE bridge.")
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return
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elif not await user.is_logged_in():
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await portal.main_intent.kick_user(room_id, user.mxid,
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"You are not logged in to this LINE bridge.")
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return
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self.log.debug(f"{user.mxid} joined {room_id}")
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async def handle_leave(self, room_id: RoomID, user_id: UserID, event_id: EventID) -> None:
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portal = await po.Portal.get_by_mxid(room_id)
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if not portal:
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return
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user = await u.User.get_by_mxid(user_id, create=False)
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if not user:
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return
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await portal.handle_matrix_leave(user)
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async def handle_reject(self, room_id: RoomID, user_id: UserID, reason: str, event_id: EventID) -> None:
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await self.handle_leave(room_id, user_id, event_id)
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async def handle_read_receipt(self, user: 'u.User', portal: 'po.Portal', event_id: EventID,
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data: SingleReceiptEventContent) -> None:
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# When reading a bridged message, view its chat in LINE, to make it send a read receipt.
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# TODO Use *null* mids for last messages in a chat!!
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# Only visit a LINE chat when its LAST bridge message has been read,
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# because LINE lacks per-message read receipts--it's all or nothing!
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# TODO Also view if message is non-last but for media, so it can be loaded.
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#if await DBMessage.is_last_by_mxid(event_id, portal.mxid):
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# Viewing a chat by updating it whole-hog, lest a ninja arrives
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if not user.is_syncing:
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await user.sync_portal(portal)
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